Plunger



FIG. 1 is a perspective view showing the new design for a plunger;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a back elevation view thereof.

The features shown in broken lines depict environmental subject matter only and form no part of the claimed design. The interior, unshaded rear surfaces seen in FIG. 7 form no part of the claimed design. 

CLAIM The ornamental design for a plunger, as shown and described. 